On irregularity strength of disjoint union of friendship graphs

Ali Ahmad, Martin Baca, Muhammad Numan

Abstract


We investigate the vertex total and edge total modication of the well-known irregularity strength of graphs. We have determined the exact values of the total vertex irregularity strength and the total edge irregularity strength of a disjoint union of friendship graphs.


Keywords


vertex irregular total k-labeling, edge irregular total k-labeling, total vertex irregularity strength, total edge irregularity strength, friendship graph

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DOI: http://dx.doi.org/10.5614/ejgta.2013.1.2.3

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ISSN: 2338-2287

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